GB1482386A - Safety valves - Google Patents

Safety valves

Info

Publication number
GB1482386A
GB1482386A GB2427175A GB2427175A GB1482386A GB 1482386 A GB1482386 A GB 1482386A GB 2427175 A GB2427175 A GB 2427175A GB 2427175 A GB2427175 A GB 2427175A GB 1482386 A GB1482386 A GB 1482386A
Authority
GB
United Kingdom
Prior art keywords
valve
pilot
june
valves
gasket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2427175A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of GB1482386A publication Critical patent/GB1482386A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7738—Pop valves
    • Y10T137/7744—Adjustable choke
    • Y10T137/7745—Annular lip or baffle
    • Y10T137/7747—Screw threaded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7766—Choked passage through main valve head

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
GB2427175A 1974-06-17 1975-06-05 Safety valves Expired GB1482386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47969574 US3897802A (en) 1974-06-17 1974-06-17 Pilot valve operator for safety relief valve

Publications (1)

Publication Number Publication Date
GB1482386A true GB1482386A (en) 1977-08-10

Family

ID=23905036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2427175A Expired GB1482386A (en) 1974-06-17 1975-06-05 Safety valves

Country Status (14)

Country Link
US (1) US3897802A (en:Method)
JP (1) JPS5111221A (en:Method)
AR (1) AR210737A1 (en:Method)
AU (1) AU8182675A (en:Method)
BE (1) BE830295A (en:Method)
BR (1) BR7503801A (en:Method)
CA (1) CA1039616A (en:Method)
CH (1) CH594154A5 (en:Method)
DE (1) DE2526789A1 (en:Method)
ES (1) ES438618A1 (en:Method)
GB (1) GB1482386A (en:Method)
IT (1) IT1035983B (en:Method)
NL (1) NL7506813A (en:Method)
ZA (1) ZA753475B (en:Method)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51116262A (en) * 1974-08-01 1976-10-13 Saburou Ochiai Plural yarn guide pipe mechanism for multicolor pattern knitting machine
US4708164A (en) * 1986-06-16 1987-11-24 Dresser Industries, Inc. Safety relief valve
US5046524A (en) * 1990-07-23 1991-09-10 Dresser Industries, Inc. Safety relief valve
US5094266A (en) * 1991-05-22 1992-03-10 Ledbetter Harold J Pressure release valve
US5782259A (en) * 1994-06-16 1998-07-21 Ledbetter; Harold J. Pressure relief valve
US7134447B2 (en) * 2002-11-22 2006-11-14 Victor Equipment Company Gas pressure regulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754842A (en) * 1952-06-25 1956-07-17 Hagiwara Noboru Pressure responsive pop valves
US2821208A (en) * 1955-10-19 1958-01-28 Farris Victor Wallace Safety valves
US2875978A (en) * 1956-04-25 1959-03-03 Mcdonnell & Miller Inc Valve construction
US3354900A (en) * 1965-02-24 1967-11-28 Dresser Ind Safety valve having variable area secondary orifice
US3439702A (en) * 1966-06-13 1969-04-22 Dresser Ind Pilot operated safety relief valve

Also Published As

Publication number Publication date
US3897802A (en) 1975-08-05
BR7503801A (pt) 1976-07-06
AU8182675A (en) 1976-12-09
DE2526789A1 (de) 1976-01-02
ES438618A1 (es) 1977-07-01
JPS5111221A (en:Method) 1976-01-29
CH594154A5 (en:Method) 1977-12-30
BE830295A (fr) 1975-10-16
ZA753475B (en) 1976-04-28
AR210737A1 (es) 1977-09-15
IT1035983B (it) 1979-10-20
CA1039616A (en) 1978-10-03
NL7506813A (nl) 1975-12-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee